Adaptive hierarchical modulation for simultaneous voice and multi-class data transmission over fading channels

Md J. Hossain, P. K. Vitthaladevuni, M. S. Alouini, V. K. Bhargava, A. J. Goldsmith

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

We propose a new technique using adaptive hierarchical modulation for simultaneous voice and multi-class data transmission over fading channels. We present closed-form expressions as well as numerical results for outage probability and achievable spectral efficiency for voice and data transmissions over Nakagami-m fading channels. We also extend the adaptive techniques employing hybrid binary shift keying (BPSK)/M-ary amplitude modulation (M-AM) [1] and uniform M-my quadrature amplitude modulation (M-QAM) [2] for simultaneous voice and two different classes of data transmission. Compared to the extended schemes, the proposed new scheme is spectrally more efficient for data transmission while keeping the same outage probabilities for voice and data (both classes) as the scheme employing BPSKM-AM. The new scheme provides also as a byproduct a spectrally more efficient way of transmitting voice and single ciass data than the schemes proposed in [1] and [2].

Original languageEnglish (US)
Title of host publication2003 4th IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages105-109
Number of pages5
Volume2004-January
ISBN (Electronic)078037858X
DOIs
StatePublished - 2004
Externally publishedYes
Event4th IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2003 - Rome, Italy
Duration: Jun 15 2003Jun 18 2003

Other

Other4th IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2003
CountryItaly
CityRome
Period06/15/0306/18/03

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

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